I like snails and have lots of them....common type most people consider pest, ramshorn, pond and trumpet, IMO/E they can be a good thing in an aquarium if population is kept in check and they can get out of control pretty fast.

Mine have a job and are part of my little ecosystem I create in a glass box, mine do help clean up algae, eat left over food and help make infusoria for the Betta fry first food, the trumpet snail a livebearer helps to keep the soil oxygenated to prevent anaerobic area from their borrowing behavior....but boy-O-boy can these guys get out of control....lol......

I have 100's upon 100's of these different common snails in all my natural planted tanks and enjoy them even though I have to trap and remove at least 100 a week....lol........

Good to use as in "Do they clean the tank?" Nope. They are mostly for entertainment purposes and don't really clean the tank. They poop a lot too add to the bargain. :)

The biggest problem they can cause is over population.

Nope. 1-2 snails can live just perfectly in a 10g, as long as you don't have a lot of other fish in there.

okay well i have a 10 gallon and also i have an oscar so i dont know weather i sould put them in ther they are about the size of your pinkey finger nail and i was wondering will the oscar eat the snail?

and they are just really cool to just sit there and watch lol im amused easily=D

Def. need an upgrade or to rehome him if you can't get him a proper tank..

i know but for right now it is his only place to live because when i moved i had to sell my 110 gallon so until i get money then i will be getting him a good sized tank that he would do just fine in... but he is a baby so he will survive until i get him a bigger tank=D